SIOUX FALLS, S.D. - No one in the bleachers at the Sioux Falls Canaries game was quite sure what was going on down on the field. They were all quiet, wondering and transfixed on the little old man digging into the batters' box. The infielders moved up on the grass, giggling, and pitcher looked as uncomfortable as anyone else would have felt. But to 83-year-old Jim Eriotes, it was serious business. Eriotes led off Tuesday's game for the Canaries against the St. Joe (Mo.) Blacksnakes and took four big swings _ even fouling a pitch off _ before striking out....